BC
                     f.e13.F2000     f.e13.F2000      difference     rel diff(%)
Sources (Tg/yr)            7.794           7.794           0.000           0.000
        emission           7.794           7.794           0.000           0.000
Sinks (Tg/yr)              7.726           7.729          -0.003          -0.039
         dry_dep           2.154           2.021           0.133           6.156
         wet_dep           5.572           5.707          -0.136          -2.433
Lifetime (days)            5.562           5.388           0.175           3.142
Burden (Tg)                0.118           0.114           0.004           3.104
    accumulation           0.072           0.073          -0.001          -1.058
  primary_carbon           0.046           0.041           0.004           9.613